Method and apparatus for coating a metallic substrate with an oily substance
CA 2113535 C · Owner: Elcorsy Technology Inc. · Inventors: Castegnier, Adrien; Gadbois, Gilles
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and apparatus for coating a metallic substrate with an oily substance. Use is made of a support member having a ceramic coating comprising an oxide ceramic material, onto which is applied the oily substance to form a film of the oily substance uniformly covering the surface of the ceramic coating the film of oily substance breaking down into micro-droplets having substantially uniform size and distribution. The micro-droplets of oily substance are thereafter transferred onto a surface of the metallic substrate without substantially altering the size and distribution of the micro-droplets, thereby coating the surface of the metallic substrate with the oily substance. The invention …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed January 14, 1994 and granted February 23, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 14, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 14, 2016.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.